Staff Software Engineer, Orders & Fulfillment Platform

<p><strong>The Role</strong></p> <p>As a <strong>Technical Lead </strong>on the <strong>Orders Ecosystem Platform</strong> team, you will be responsible for shaping the future of our core ordering platform and system of record for all transactions on Square. You will lead the design and architecture of large-scale distributed systems that power our order management services, which both 1P and 3P developers at Square rely on as the foundation for helping our Sellers complete their sales and grow. This is a high-impact <strong>individual contributor (IC)</strong> role that requires a deep technical background, a strong sense of ownership, a passion for AI and emerging technologies, strong leadership skills, and the ability to think strategically while building a culture of AI-enabled engineering excellence and platform thinking.</p> <p><strong>You Will</strong></p> <ul> <li>Lead the design, development, and deployment of large-scale distributed systems within the orders ecosystem platform</li> <li>Build and drive the technical vision and architecture for the platform, ensuring solutions are scalable, resilient, highly performant, and extensible.</li> <li>Hands-on high velocity delivery with our code and delivering value to our Sellers and wider ecosystem</li> <li>Effectively use Agentic Coding practices for research, planning, monitoring, and delivery</li> <li>Collaborate with cross-functional teams including engineering, product, and operations to deliver scalable solutions that improve the efficiency, reliability, performance, and development velocity of our platform.</li> <li>Identify and solve complex technical challenges related to performance, scalability, and system reliability.</li> <li>Provide technical leadership and mentorship to engineers, fostering a culture of engineering excellence that embraces AI-first thinking. You will champion best practices for AI-assisted development, and foster a culture where engineers confidently leverage AI to amplify their impact.</li> </ul> <p><strong>You Have</strong></p> <ul> <li><strong>12+ years of experience</strong> in software engineering with a proven track record of designing and implementing large-scale distributed systems.</li> <li>Deep knowledge of <strong>backend technologies</strong>, including cloud infrastructure (AWS, GCP, or Azure), databases, and messaging systems.</li> <li>Proven ability to lead major technical initiatives from design through production. Experience with server API design to enable good 1P and 3P velocity on top of team platforms, as well as data synchronization between client and server and across backend services.</li> <li>Proven ability to mentor and guide senior engineers and contribute to the overall growth of engineering teams.</li> <li>Excellent communication skills, capable of explaining complex technical concepts to diverse audiences.</li> <li><strong>Bonus : </strong>Experience with e-commerce domain or Order management systems</li> </ul> <p><strong>Technologies We Use and Teach</strong></p> <ul> <li>Java, Kotlin, or similar backend languages</li> <li>Distributed systems and event-driven architectures</li> <li>Cloud infrastructure and containerized services</li> <li>Relational and NoSQL databases</li> <li>Messaging systems and API design</li> </ul> <p>We're working to build a more inclusive economy where our customers have equal access to opportunity, and we strive to live by these same values in building our workplace. Block is a proud equal opportunity employer. We work hard to evaluate all employees and job applicants consistently, based solely on the core competencies required of the role at hand, and without regard to any legally protected class. We believe in being fair, and are committed to an inclusive interview experience, including providing reasonable accommodations to disabled applicants throughout the recruitment process. We encourage applicants to share any needed accommodations with their recruiter, who will treat these requ ... (truncated, view full listing at source)